0x4339…0040

Arbitrum

Runs code on every swap.

0x4339bb9e1533703b4b487e095b3df03d3c6b0040 First pool 9 Mar 2026View on explorer

BProbably fineNot in Uniswap’s hook registry · Source code not published

Pools

Dynamic-fee pools

Last new pool

8mo

Code size

3,303 B

What it can do

Runs code on every swap

Its code executes inside each trade in pools that use it.

Automated checks, not an audit

✓Not upgradeableNo proxy pattern found: the code is fixed.

!Has an adminowner() is 0x4e59…956c. That account can usually change fees, limits or allowlists after you trade.

!Not in Uniswap’s hook registryUnregistered hooks get less scrutiny. Most scam hooks are unregistered.

!Source code not publishedNobody can read what this hook actually does. Treat it as a black box.

?No audit linkedAutomated checks only.

2 total

PairCreatedFeePool ID

WETH / USD₮0 8mo 0.05% 0xa233…1d79 Tx ↗

WETH / USD₮0 8mo 0.30% 0xe546…2ce4 Tx ↗